21 53... Checking/topping up fluid level in hydraulic system (GS6S37BZ/GS6S53BZ/ SMG)
WARNING: This page is about a different car, the 2010 BMW 650i, 2009 BMW 650i, 2008 BMW 650i, 2007 BMW 650i, and 2006 BMW 650i. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 00 2 080 .
IMPORTANT:
There are 2 different methods of checking/topping up the fluid level.
IMPORTANT:
Use special tool exclusively
for filling hydraulic systems with Pentosin.
Method 1:
- Switch on ignition.
- Bleed hydraulic system in accordance with BMW diagnosis system.
- Open filler screw (1).
- Fill expansion tank with special tool 00 2 080 up to MAX mark.
Hydraulic fluid for clutch hydraulics. See CLUTCH - OPERATING FLUIDS .
Method 2:
- Depressurize hydraulic system in accordance with BMW diagnosis system.
- Open filler screw (1).
- Fill expansion tank with special tool 00 2 080 up to lower edge of filler opening.
Hydraulic fluid for clutch hydraulics. See CLUTCH - OPERATING FLUIDS .